GRASS VALLEY PERFORMER, Инструкция по эксплуатации

Страница: 80 / 182

2-48
Section 2 —
Installation
Performer Serial Remote Control Panel
The Performer Serial Remote Control Panel communicates with
Performer serially using the RS485 standard. Up to four remote
control panels and four Performers or Performer and TEN–20
matrices may be on one communications bus. Installing the
Performer Remote Control Panel consists of the following steps:
■
Selecting Performer protocol (Performer switch S2)
■
Setting Performer switch S1
■
Setting Control Panel switches
■
Mounting the panel in a standard, 19-inch equipment
rack
■
Connecting the communications cable
■
Powering up the panel
Performer Protocol Selection
In order to use the Performer remote panel, you must set
Performer for one of the four 20–TEN compatible protocols
(referred to henceforth as Performer Remote/20-TEN protocol).
Directions for doing this are described earlier in this section.
When a 20-TEN protocol is selected, the Performer serial port is
forced to 76.8K baud, 8 data bits, no parity regardless of Performer
baud and parity-determining switches. In addition, the function
of Performer‘s address selection switch (S1) changes to become a
source, destination, and level offset determining switch to permit
multiple Performers to be ganged together in a master-slave
arrangement.
There are four TEN–20 protocols available. Their effects are
described in Table 2-8.